SUPPLEMENT TO THE DISTRIBUTIONAL LIST 29 already been noted. I took a nest of four eggs on the banks of the Merced, June 10, 1914, at an altitude of only 4000 feet, a notable departure due to the peculiar configura- tion of this "caved in" country. Zonotvichia albicollis. V?hite-throated Sparrow. "Rare winter visitant"; 17 records enumerated. These sparrows have become rather common in Santa Barbara this fall, to judge from their drawling notes; but they are exceedingly shy, and must be caught unawares to be seen. But as I write these words (December 8, 1915) a handsome fellow is feeding upon the ground within ten feet of my study window. Progne subis hesperia. Western Martin. "Distributed as a breeding species along, and west of, the Sierras". Then Honey Lake in Lasse? County may be farther east and north than any previously recorded breeding station. We found a single pair on the 4th of June, 1912, occupying a hollow limb in a giant pine overlooking the lake. I-lirundo erythrogaster. Barn Swallow. "Breeds . . . the entire length of the state west of the Sierras". In noting exceptions the List gives Lake Tahoe and Eagle Lake as extremes from the northeast. We found Barn Swallows breeding sparingly through- out Modoc and Lassen counties, with particular records as follows: Long Valley, June 4, 1912; Goose Lake (Davis Creek) June 17, and Surprise Valley (Eagleville), June 29, 1912. Vireo huttoni I?uttoni. Hutton Vireo. A more "eastward" record than any given by Grinnell is Palm Springs, January 25, 1913, a specimen taken by Allan Brooks. Cinclus rnexlcanus unicolor. American Dipper. Grinnell omits all reference to the hibernal retreat of this species to lower levels. This phenomenon would not be notice- able in the southern ranges, but is undoubtedly as characteristic of the bird in north- ern California and the high Sierras as it is in Washington or British Columbia. "Also, perhaps casually, or at any rate not at present time, vicinity of Santa Barbara". Mr. Bowles has seen the bird in Mission Canyon, and I flushed one repeatedly in Tecolote Canyon, November 10, 1915. My impression is, however, that these are extreme exam- ples of the hibernal retreat referred to, rather than of resident birds. Oreoscoptes rnontanus. Sage Thrasher. On the 4th of April, 1914, a single individ- ual of this species ventured near our camp and sang sweetly at "Point of Rocks", in extreme northwestern Kern County. Catherpes mexicanus punctulatus. Auburn Canyon Wren. "Fairly common resi- dent locally . . . San Diego northwestward to Mount Pinos". This wren is Cluite com- mon in the Santa Ynez Range near Santa Barbara, and appears to be on the increase of late. "Sparingly in west-central district", with southernmost citation from Santa Cruz County. This bird occurs regularly also along the "innermost coast range"--shall we call it the Shandon Range ?--which forms the eastern border of San Luis Obispo County. Record stations are: Shandon, S. L. O. Co., March 29, 1911; Palo Prieta (Valley), S. L. O. Co., April 8, 1911; Antelope Valley, extreme northwestern Kern County, April 10, 1912; Canaris Springs, Kern County, April 4 to 7, 1914; Kettleman Plains, western Kings County, April 7, 1911. The most out of character occurrence of this bird in my experience was at Lathrop, on the edge of the great San Joacluin swamp, May 25, 1912. The wren examined the gables of a blacksmith's shop, flitted to a neighboring windmill, sang, and appeared thoroughly at home. "Casually to Santa Cruz Island". Heard on only one occasion, April 20, in the dropping song, by our island party of 1915. Troglodytes aedon parkmanh Western House Wren. "Common summer visitant to Upper Sonoran and Transition . . . invades the higher mountains extensively during late summer". This doughty Troglodyte is also entitled to a place as a breeder in the Canadian zone. I found nests and took eggs (July 3 and 8, 1912) of this species in the Warner Mountains, at an altitude of over 7400 feet. Its nesting associates at this sta- tion numbered such indubitable borealities as Western Ruby-crowned Kinglet, Wright Flycatcher, and Red-breasted Nuthatch. Pentbestes garnbeli bai?eyae. Bailey Chickadee. "Common resident . . . from Mount Pinos... southeastward". Mountain Chickadees sometimes aDpear on the Santa Ynez Range, back of Santa Barbara (January $ and 16, and February 27, 1915); and ! have had the birds described to me within the city limits. Psaitriparus rninirnus californicus. California Bush-Tit. "Northeastward . . . to head of Pit River basin on the west side of the Warner Mountains". On July 1, 1912, we found this species on Raider Creek just above the Surprise Valley, on the lowermost eastern slopes of the Warner Range. The extension seems trivial save when it is real-
